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y = 5x² - 4/x³

1/x can be written as x^-1, which means our equation can also be written as y = 5x² - 4x^-3.

dy/dx means ...

x^2 + y^2 = 9

x + y = 2 

1) Firstly look at the second equation which is the simplest and think how you can rearrange it to fit into the first equation:

The highest marks for English Literature essays require the student to not only be confident and effective when arguing his or her answer but also integrate a nuanced response to other possible answers...

Poem analysis has several dimensions to it all of which you need to address in order to write an answer worthy of the top marking band.

The first time you read through the essay try to do...